EP0751045A2 - Système d'alimentation électrique pour un véhicule avec moteur à combustion interne - Google Patents

Système d'alimentation électrique pour un véhicule avec moteur à combustion interne Download PDF

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Publication number
EP0751045A2
EP0751045A2 EP96107325A EP96107325A EP0751045A2 EP 0751045 A2 EP0751045 A2 EP 0751045A2 EP 96107325 A EP96107325 A EP 96107325A EP 96107325 A EP96107325 A EP 96107325A EP 0751045 A2 EP0751045 A2 EP 0751045A2
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
fuel
fuel cell
hydrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96107325A
Other languages
German (de)
English (en)
Other versions
EP0751045A3 (fr
EP0751045B1 (fr
Inventor
Günter Dr. Abersfelder
Helmut Dr. Buchner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler Benz AG
Mercedes Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0751045A2 publication Critical patent/EP0751045A2/fr
Publication of EP0751045A3 publication Critical patent/EP0751045A3/fr
Application granted granted Critical
Publication of EP0751045B1 publication Critical patent/EP0751045B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for DC mains or DC distribution networks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2101/00—Supply or distribution of decentralised, dispersed or local electric power generation
    • H02J2101/20—Dispersed power generation using renewable energy sources
    • H02J2101/30—Fuel cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
    • H02J2105/30—Networks for supplying or distributing electric power characterised by their spatial reach or by the load the load networks being external to vehicles, i.e. exchanging power with vehicles
    • H02J2105/33—Networks for supplying or distributing electric power characterised by their spatial reach or by the load the load networks being external to vehicles, i.e. exchanging power with vehicles exchanging power with road vehicles

Definitions

  • the invention relates to a power generation system for a vehicle with an internal combustion engine according to claim 1, and a method for operating such a system.
  • an alternator for generating electrical energy, which is driven by the internal combustion engine.
  • the electricity supplied by the alternator is made available to the electrical consumers in the vehicle.
  • the alternator is also used to charge the vehicle battery.
  • the invention has for its object to provide a power generation system for a vehicle with an internal combustion engine, through which the current can be made available to the electrical consumers with reduced fuel consumption and regardless of the current speed of the internal combustion engine. It is also an object of the invention to provide a method for operating such a system.
  • the use of a fuel cell system instead of an alternator in a vehicle with an internal combustion engine has the advantage that the electricity required can be provided with significantly reduced fuel consumption due to the better efficiency of the fuel cell.
  • the power of the fuel cell can be set independently of the speed of the internal combustion engine, so that the current generated electrical power can be adapted to the respective need.
  • auxiliary units such as fans or air conditioning compressors
  • a fuel cell offers the possibility of providing electrical current even when the internal combustion engine is switched off, so that improvements, for example in the air conditioning of the vehicle, are made possible.
  • the vehicle is driven with the aid of an internal combustion engine 1.
  • a fuel tank 2 and a fuel line 3 are provided to supply the internal combustion engine 1 with liquid fuel.
  • a fuel cell 4 is also arranged in the vehicle for generating electrical energy.
  • An H 2 / O 2 fuel cell with a proton-conducting membrane, hereinafter referred to as a PEM cell, can preferably be used for this.
  • PEM cell proton-conducting membrane
  • the PEM cell 4 is supplied with oxygen via a first supply line 7 and hydrogen gas via a second supply line 8.
  • the hydrogen is oxidized at the anode and the oxygen at the cathode is reduced.
  • This electrochemical reaction creates a voltage between the two electrodes.
  • many such cells can be combined into a so-called stack by connecting them in parallel or in series.
  • pure hydrogen and oxygen only residual oxygen and water are released from the PEM cell 4 via an outlet line 9.
  • the oxygen is supplied to the PEM cell 4 in the form of atmospheric oxygen.
  • the required hydrogen is preferably separated from the fuel used for the internal combustion engine 1.
  • Conventional fuels such as diesel, normal gasoline or methanol, contain hydrocarbons, from which hydrogen can be separated in a relatively simple manner, for example with the aid of a cracking plant 10.
  • the exact structure of such splitting systems 10 is known in principle and is therefore not described further here.
  • only a portion of the hydrogen is preferably separated from the fuel in the arrangement shown and the remaining fuel components subsequently recycled in internal combustion engine 1.
  • the hydrogen is separated from the remaining fuel components in an H 2 separation system 11, the separated hydrogen being fed to the PEM cell 4 via a supply line 12.
  • An H 2 intermediate store 13 can additionally be arranged in this supply line 12.
  • This H 2 intermediate storage device 13 can be used, on the one hand, to supply the PEM cell 4 with hydrogen when the vehicle is started until the hydrogen supply via the gap system 10 is ready for operation.
  • the hydrogen can then also be fed from the H 2 separation system 11 directly to the PEM cell 4 bypassing the H 2 intermediate storage 13 via a bypass line 14.
  • Any device 11 known from the prior art can be used to separate the hydrogen from the remaining fuel components, for example based on metal foils.
  • the fuel components remaining in the H 2 separation system 11 are discharged via a disposal line 15. There are several options for recycling these fuel components. Liquid components can be returned to the fuel tank 2 via a line 17. Gaseous constituents can be supplied to the internal combustion engine 1 via a line 18 either directly or preferably via a mixture generator 16, which is also connected to the fuel line 3. In this case, the mixture generator 16 is connected to the internal combustion engine 1 via a further line 19.
  • An intermediate store 20 for the remaining fuel components can additionally be provided in the disposal line 15. This has the advantage that the remaining fuel components can be stored temporarily and can only be supplied to the internal combustion engine 1 when required. In the event that the PEM cell 4 is to be operated even when the internal combustion engine 1 is at a standstill, the use of such a buffer store 20 is particularly advantageous.
  • the fuel components can then be fully or partially condensed in the intermediate store 20 and then fed to the fuel tank 2.
  • the gaseous fuel components are then in turn fed to the internal combustion engine 1 via the mixture images 16.
  • any other method can also be used to partially or completely separate hydrogen from the fuel, for example also by reforming the fuel.
  • the current generated by the PEM cell 4 is supplied to the electrical consumers 5 in the vehicle.
  • the electricity generated can be used to charge a battery 6, which is required to start the PEM cell 4 and / or the splitting system 10. An alternator is no longer used in this system.
  • gaseous residues can be fed to the combustion engine 1 either directly or via the mixture pictures 16 for recycling.
  • gaseous residues can also be buffered in the intermediate storage 20 and only supplied to the internal combustion engine 1 directly or again via the mixture images 16 with a time delay. It is also possible here to utilize the residues from the intermediate storage 20 only under predetermined operating conditions. If liquid constituents remain during the hydrogen separation, these can be fed to the fuel tank 2 as condensate. Care must be taken, however, that the fuel quality, in particular the ignitability, is not unduly impaired by the hydrogen separation.
  • the PEM cell 4 can be operated as long as long as the internal combustion engine 1 is in operation and sufficient fuel is available. However, the operation of the PEM cell 4 is not restricted to the operating times of the internal combustion engine 1, as is the case with an alternator. Rather, it is also possible with this system to continue to generate electrical energy when the internal combustion engine 1 is at a standstill. Various concepts are possible for this. In the event of a brief interruption - in the range of a few minutes - hydrogen can be generated in the splitting system 10 until the intermediate store 20 is filled with the remaining fuel components. In the event of medium interruptions - in the range from 0.5 to 1.5 hours - the splitting system 10 can be switched off and the PEM cell 4 can be supplied with hydrogen from the H 2 intermediate store 13.
  • the addition of suitable additives with low-boiling components into the fuel tank 2 can be provided to refresh the cleavability.
  • the splitting system 10 can then be carried out relatively simply.
  • the PEM cell 4 can be briefly supplied with hydrogen from the H 2 intermediate storage 13. Only after a predetermined operating time of the PEM cell 4 is the splitting system 10 started.
  • the electrical energy for starting the PEM cell 4 and / or the gap system 10 is preferably provided by a battery 6. In such a system, the battery 6 can possibly be dimensioned correspondingly smaller in comparison to conventional vehicle batteries.
  • the PEM cell 4 does not have to be operated with a constant load, but can be set as a function of the required current.
  • a Control device which specifies the target power of the PEM cell 4 as a function of the number and the need of the connected electrical consumers 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fuel Cell (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
EP96107325A 1995-06-26 1996-05-09 Système d'alimentation électrique pour un véhicule avec moteur à combustion interne Expired - Lifetime EP0751045B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19523109A DE19523109C2 (de) 1995-06-26 1995-06-26 Kraftfahrzeug mit Brennkraftmaschine und einem Stromerzeugungssystem
DE19523109 1995-06-26

Publications (3)

Publication Number Publication Date
EP0751045A2 true EP0751045A2 (fr) 1997-01-02
EP0751045A3 EP0751045A3 (fr) 2000-03-22
EP0751045B1 EP0751045B1 (fr) 2003-12-10

Family

ID=7765242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96107325A Expired - Lifetime EP0751045B1 (fr) 1995-06-26 1996-05-09 Système d'alimentation électrique pour un véhicule avec moteur à combustion interne

Country Status (3)

Country Link
US (2) US6346340B1 (fr)
EP (1) EP0751045B1 (fr)
DE (2) DE19523109C2 (fr)

Cited By (18)

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Publication number Priority date Publication date Assignee Title
EP1057997A1 (fr) * 1999-05-29 2000-12-06 Bayerische Motoren Werke Aktiengesellschaft Moteur à combustion interne avec une pile à combustible comme source de tension/courant
WO2000076810A1 (fr) * 1999-06-10 2000-12-21 Siemens Aktiengesellschaft Systeme d'alimentation en energie pour systemes impliques dans la securite montes dans un vehicule automobile
WO2001033653A1 (fr) * 1999-10-29 2001-05-10 Daimlerchrysler Rail Systems Gmbh Dispositif pour l'alimentation electrique d'unites auxiliaires de vehicules sur rails
KR20010075224A (ko) * 1998-09-30 2001-08-09 가나이 쓰도무 연료전지시스템 및 그것을 사용한 차량
WO2001071838A3 (fr) * 2000-03-18 2002-05-30 Proton Motor Fuel Cell Gmbh Installation combinee pile a combustible et moteur a combustion interne et/ou bruleur
WO2002053418A1 (fr) * 2000-12-29 2002-07-11 Siemens Aktiengesellschaft Systeme de refroidissement pour module de piles a combustible faisant partie d'un systeme d'alimentation embarque
FR2821118A1 (fr) * 2001-02-19 2002-08-23 Peugeot Citroen Automobiles Sa Procede et dispositif de rechauffage et de maintien en temperature d'un pot catalytique d'une ligne d'echappement d'un vehicule automobile
WO2002049131A3 (fr) * 2000-12-16 2002-11-28 Bayerische Motoren Werke Ag Systeme de piles a combustible dans un vehicule dote d'un moteur a combustion et procede permettant son fonctionnement
EP1069069A3 (fr) * 1999-07-06 2003-01-22 Bayerische Motoren Werke Aktiengesellschaft Dispositif de génération d'hydrogène gazeux
FR2832857A1 (fr) * 2001-11-24 2003-05-30 Bosch Gmbh Robert Installation a pile a combustible
US6672415B1 (en) 1999-05-26 2004-01-06 Toyota Jidosha Kabushiki Kaisha Moving object with fuel cells incorporated therein and method of controlling the same
EP1211743A3 (fr) * 2000-12-04 2004-02-25 Nissan Motor Co., Ltd. Unité de production d'énergie à pile à combustible avec dispositif de reformage
US7041272B2 (en) * 2000-10-27 2006-05-09 Questair Technologies Inc. Systems and processes for providing hydrogen to fuel cells
US7189280B2 (en) 2004-06-29 2007-03-13 Questair Technologies Inc. Adsorptive separation of gas streams
EP1873859A1 (fr) * 2000-06-08 2008-01-02 Toyota Jidosha Kabushiki Kaisha Système de pile à combustible pour piles à combustible
EP2348254A1 (fr) * 2010-01-22 2011-07-27 RV Lizenz AG Dispositif d'entraînement sans émission
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KR20010075224A (ko) * 1998-09-30 2001-08-09 가나이 쓰도무 연료전지시스템 및 그것을 사용한 차량
US7273120B2 (en) 1999-05-26 2007-09-25 Toyota Jidosha Kabushiki Kaisha Moving object with fuel cells incorporated therein and method of controlling the same
US6672415B1 (en) 1999-05-26 2004-01-06 Toyota Jidosha Kabushiki Kaisha Moving object with fuel cells incorporated therein and method of controlling the same
EP1055545B1 (fr) * 1999-05-26 2004-01-28 Toyota Jidosha Kabushiki Kaisha Véhicule hybride avec piles à combustible intégrées et sa méthode de contrôle
EP1057997A1 (fr) * 1999-05-29 2000-12-06 Bayerische Motoren Werke Aktiengesellschaft Moteur à combustion interne avec une pile à combustible comme source de tension/courant
WO2000076810A1 (fr) * 1999-06-10 2000-12-21 Siemens Aktiengesellschaft Systeme d'alimentation en energie pour systemes impliques dans la securite montes dans un vehicule automobile
EP1069069A3 (fr) * 1999-07-06 2003-01-22 Bayerische Motoren Werke Aktiengesellschaft Dispositif de génération d'hydrogène gazeux
WO2001033653A1 (fr) * 1999-10-29 2001-05-10 Daimlerchrysler Rail Systems Gmbh Dispositif pour l'alimentation electrique d'unites auxiliaires de vehicules sur rails
WO2001071838A3 (fr) * 2000-03-18 2002-05-30 Proton Motor Fuel Cell Gmbh Installation combinee pile a combustible et moteur a combustion interne et/ou bruleur
USRE43219E1 (en) 2000-06-08 2012-02-28 Toyota Jidosha Kabushiki Kaisha Fuel cell fuel supply system and mobile body
EP1873859A1 (fr) * 2000-06-08 2008-01-02 Toyota Jidosha Kabushiki Kaisha Système de pile à combustible pour piles à combustible
US7674539B2 (en) 2000-10-27 2010-03-09 Xebec Adsorption Inc. Systems and processes for providing hydrogen to fuel cells
US7041272B2 (en) * 2000-10-27 2006-05-09 Questair Technologies Inc. Systems and processes for providing hydrogen to fuel cells
EP1211743A3 (fr) * 2000-12-04 2004-02-25 Nissan Motor Co., Ltd. Unité de production d'énergie à pile à combustible avec dispositif de reformage
US6866953B2 (en) 2000-12-04 2005-03-15 Nissan Motor Co., Ltd. Fuel cell power plant
WO2002049131A3 (fr) * 2000-12-16 2002-11-28 Bayerische Motoren Werke Ag Systeme de piles a combustible dans un vehicule dote d'un moteur a combustion et procede permettant son fonctionnement
US6899062B2 (en) 2000-12-29 2005-05-31 Siemens Aktiengesellschaft Cooling system for a fuel cell module as part of an on-board power supply
WO2002053418A1 (fr) * 2000-12-29 2002-07-11 Siemens Aktiengesellschaft Systeme de refroidissement pour module de piles a combustible faisant partie d'un systeme d'alimentation embarque
FR2821118A1 (fr) * 2001-02-19 2002-08-23 Peugeot Citroen Automobiles Sa Procede et dispositif de rechauffage et de maintien en temperature d'un pot catalytique d'une ligne d'echappement d'un vehicule automobile
FR2832857A1 (fr) * 2001-11-24 2003-05-30 Bosch Gmbh Robert Installation a pile a combustible
US7189280B2 (en) 2004-06-29 2007-03-13 Questair Technologies Inc. Adsorptive separation of gas streams
EP2348254A1 (fr) * 2010-01-22 2011-07-27 RV Lizenz AG Dispositif d'entraînement sans émission
US10072841B2 (en) 2010-01-22 2018-09-11 Rv Lizenz Ag Emission-free devices and method for performing mechanical work and for generating electrical and thermal energy
US11397004B2 (en) 2010-01-22 2022-07-26 Rv Lizenz Ag Emission-free devices and method for performing mechanical work and for generating electrical and thermal energy
FR2999342A1 (fr) * 2012-12-10 2014-06-13 Snecma Systeme de production d'electricite embarque avec pile a combustible

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Publication number Publication date
DE19523109A1 (de) 1997-01-09
DE59610856D1 (de) 2004-01-22
US6346340B1 (en) 2002-02-12
EP0751045A3 (fr) 2000-03-22
US6210822B1 (en) 2001-04-03
EP0751045B1 (fr) 2003-12-10
DE19523109C2 (de) 2001-10-11

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